Device for measuring assembly clearance of aircraft lock pin and lock ring in specific space

By using an image detection module and a test host module device at the assembly gap of the aircraft nacelle locking ring and locking pin, the problem that the prior art cannot quantitatively detect the assembly gap is solved, and high-precision measurement and testing of the assembly gap between the aircraft locking pin and locking ring is realized, improving detection efficiency and accuracy.

CN120191522APending Publication Date: 2025-06-24CHENGDU ALLEN AVIATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510355442.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2025-06-24

AI Technical Summary

Technical Problem

The prior art cannot quantitatively detect the assembly gap between the aircraft hood locking ring and lock pin, resulting in the inability to effectively prevent the occurrence of locking looseness.

Method used

A device including a test host module and an image detection module is provided. The image after the lock pin is inserted into the lock ring is obtained through the image detection module, and the lock ring base is engaged with the lock ring base to realize high-precision measurement of the assembly gap between the lock pin and the lock ring.

Benefits of technology

It realizes high-precision measurement of the assembly gap between the aircraft lock pin and lock ring, has high flexibility and applicability, simplifies the testing process, improves testing efficiency and accuracy, and is suitable for quality control and clearance detection in aircraft manufacturing and maintenance.

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Abstract

The invention provides a device for measuring an aircraft lock pin and lock ring assembly gap in a specific space, the device comprises a test host module and an image detection module, the test host module and the image detection module are detachably connected, the middle part of the test host module is provided with a clamping groove, and the clamping groove is used for being clamped with a lock ring base; the image detection module is used for acquiring an image after the lock pin is inserted into the lock ring. The device and the method have the advantages of high-precision measurement, flexibility and applicability, convenient operation flow, wide application range, data visualization and analysis and the like, and an efficient and reliable device and a test method are provided for measurement of the assembly clearance between the aircraft lock pin and the lock ring.
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Description

Technical Field

[0001] The present invention relates to the technical field of aviation equipment, and particularly relates to a device for measuring the assembly clearance between an aircraft locking pin and a locking ring in a specific space. Background Art

[0002] An on-board self-test equipment refers to the equipment installed in an aircraft that has the ability to provide automatic test integration for detecting, diagnosing, or isolating faults inside the system or equipment, also known as on-board test equipment or self-test equipment of the aircraft itself. It can improve the maintainability of the system or equipment and facilitate in-situ inspection (i.e., on the aircraft) to verify the functions and performance of the system or equipment. There are three start-up methods for on-board self-test: one is self-test after power-on; the second is self-test as needed; and the third is periodic self-test. The locking ring and locking pin on the aircraft canopy need to be regularly inspected to prevent loosening of the lock. Currently, after the assembly of the aircraft canopy locking ring and locking pin is completed, only qualitative but not quantitative detection and testing can be carried out. Therefore, there is an urgent need for a device for measuring the assembly clearance between an aircraft locking pin and a locking ring in a specific space. Summary of the Invention

[0003] In view of this, the embodiments of the present invention provide a device for measuring the assembly clearance between an aircraft locking pin and a locking ring in a specific space to eliminate or improve one or more defects existing in the prior art.

[0004] The present invention provides a device for measuring the assembly clearance between an aircraft locking pin and a locking ring in a specific space, including: a test host module and an image detection module. The test host module and the image detection module are detachably connected. A clamping groove is formed in the middle of the test host module for clamping with the locking ring base. The image detection module is used to obtain an image after the locking pin is inserted into the locking ring.

[0005] Preferably, the test host module includes an integrally formed operation panel part, an intermediate connection part, and an image detection module installation part. Among them, the operation panel part and the image detection module installation part are arranged on both sides of the intermediate connection part. The width dimension of the intermediate connection part is smaller than the width dimensions of the operation panel part and the image detection module installation part. The side wall structures adjacent to the operation panel part, the intermediate connection part, and the image detection module installation part form the clamping groove.

[0006] Preferably, a display screen and control buttons are arranged on the operation panel part, and a first control main board and a battery are arranged inside the operation panel part.

[0007] Preferably, a charging interface is arranged on the side wall of the operation panel part, and the charging interface is electrically connected to the battery.

[0008] Preferably, the intermediate connection part is a columnar structure.

[0009] Preferably, a socket groove is provided on the image detection module mounting part, and a socket base is provided at the bottom of the image detection module. The socket base is adapted to the socket groove.

[0010] Preferably, a circuit socket interface is provided at the bottom of the socket groove, and a circuit socket connector is provided on the socket base. The circuit socket connector is adapted to the circuit socket interface. When the socket base is inserted into the socket groove, the circuit socket connector can be inserted into the circuit socket interface.

[0011] Preferably, the image detection module includes a housing structure. A second control main board and a vision recognition camera are arranged inside the housing structure. The vision recognition camera is electrically connected to the second control main board. The vision recognition camera is used to obtain an image after the locking pin is inserted into the locking ring.

[0012] Preferably, the housing structure has a base part and a protruding part. The protruding part is arranged on the top of the base part. The protruding part and the base part are arranged at an angle, and the angle is 70 degrees to 85 degrees. The vision recognition camera is installed on the protruding part so that the vision recognition camera faces the locking pin directly.

[0013] Preferably, the image obtained by the vision recognition camera after the locking pin is inserted into the locking ring at least includes the position image of the center point of the tip of the locking pin and the image of the central hole of the locking ring.

[0014] The device for measuring the assembly clearance between the aircraft locking pin and the locking ring in a specific space in the embodiment of the present invention has the following technical effects: This technical solution has the advantages of high-precision measurement, flexibility and applicability, convenient operation process, wide application range, and data visualization and analysis, providing an efficient and reliable device and test method for measuring the assembly clearance between the aircraft locking pin and the locking ring.

[0015] The additional advantages, objectives, and features of the present invention will be partially described below, and will become partially apparent to those of ordinary skill in the art after studying the following text, or can be learned from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the description and the drawings.

[0016] Those skilled in the art will understand that the objectives and advantages that can be achieved by the present invention are not limited to the above specifically described, and the above and other objectives that the present invention can achieve will be more clearly understood according to the following detailed description. Description of the Drawings

[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and do not limit the present invention. The components in the drawings are not drawn to scale, but only to illustrate the principles of the present invention. For the convenience of showing and describing some parts of the present invention, the corresponding parts in the drawings may be enlarged, that is, they may become larger relative to other components in the exemplary device actually manufactured according to the present invention.

[0018] Figure 1 It is a schematic structural diagram of a device for measuring the assembly clearance between an aircraft locking pin and a locking ring under a specific space in a working state according to an embodiment of the present invention.

[0019] Figure 2 It is a schematic structural diagram of a test host module according to an embodiment of the present invention.

[0020] Figure 3 It is a schematic structural diagram of an image detection module according to an embodiment of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the assembled state of a locking pin and a locking ring according to an embodiment of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the ideal assembled state of a locking pin and a locking ring according to an embodiment of the present invention.

[0023] Reference numerals: 1, engaging groove; 2, locking ring base; 3, locking pin; 4, locking ring; 5, operation panel part; 6, intermediate connection part; 7, image detection module installation part; 8, display screen; 9, control button; 10, charging interface; 11, insertion slot; 12, insertion base; 13, circuit insertion interface; 14, second control main board; 15, visual recognition camera; 16, base part; 17, convex part. Detailed implementation manners

[0024] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the implementation manners and the accompanying drawings. Here, the illustrative implementation manners of the present invention and their descriptions are used to explain the present invention, but do not limit the present invention.

[0025] Here, it should also be noted that in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and other details less related to the present invention are omitted.

[0026] It should be emphasized that the term "including / containing" when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0027] It should also be noted that, unless otherwise specified, the term “connection” herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0028] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0029] Reference Figure 1 An embodiment of the present invention provides a device for measuring the assembly clearance of an aircraft locking pin 3 and a locking ring 4 in a specific space, comprising: a test host module and an image detection module, the test host module and the image detection module are detachably connected, the middle of the test host module has a snap-in groove 1, the snap-in groove 1 is used to snap with the locking ring base 2; the image detection module is used to obtain an image after the locking pin 3 is inserted into the locking ring 4.

[0030] In the above embodiment, by acquiring an image of the lock pin after being inserted into the lock ring through the image detection module, high-precision measurement of the assembly gap between the aircraft lock pin and the lock ring can be achieved. Image detection technology has the characteristics of non-contact and high resolution, and can capture tiny changes in the assembly gap, thereby ensuring the accuracy and reliability of the measurement results.

[0031] The test host module and the image detection module are detachably connected, making the device highly flexible and applicable. According to different test requirements and the model specifications of the aircraft lock pin and lock ring, the test host module and the image detection module can be easily replaced or adjusted to adapt to different test scenarios.

[0032] The device is engaged with the locking ring base through the engagement groove, which simplifies the preparation work before the test and makes the test process more convenient and efficient. At the same time, the image detection module can automatically acquire and process image data, reducing the complexity and error of manual operation and improving test efficiency.

[0033] The device is suitable for measuring the gap between the aircraft lock pin and the lock ring assembly in a specific space (such as a small space inside the cabin). It can be used not only for quality control in the aircraft manufacturing process, but also for gap detection in aircraft repair and maintenance. In addition, its high precision and flexibility also make it have broad application prospects in other industrial fields that require precision measurement.

[0034] The image data acquired by the image detection module can be further visualized and analyzed to generate intuitive assembly gap distribution diagrams, change trend diagrams and other charts, providing technicians with comprehensive test reports and data analysis support. This helps technicians better understand the assembly status of the unlocking pin and the lock ring, discover and solve problems in a timely manner, and improve the safety and reliability of the aircraft.

[0035] For a further optimized solution, refer to Figure 2 The test host module includes an integrally formed operation panel part 5, an intermediate connection part 6, and an image detection module installation part 7. Among them, the operation panel part 5 and the image detection module installation part 7 are arranged on both sides of the intermediate connection part 6. The width dimension of the intermediate connection part 6 is smaller than the width dimensions of the operation panel part 5 and the image detection module installation part 7. The adjacent side wall structures of the operation panel part 5, the intermediate connection part 6, and the image detection module installation part 7 form a clamping groove 1.

[0036] In the above embodiment, by designing the test host module as an integrally formed operation panel part, an intermediate connection part, and an image detection module installation part, the structure of the entire device is more compact and the integration degree is higher. This design not only reduces the number of components, lowers the manufacturing cost, but also improves the stability and reliability of the device.

[0037] The width dimension of the intermediate connection part is smaller than the width dimensions of the operation panel part and the image detection module installation part. This design makes the utilization rate of the device in a specific space higher. Whether in a narrow aircraft manufacturing workshop or a maintenance site, the device can flexibly adapt to ensure the smooth progress of the test work.

[0038] The operation panel part is arranged on one side of the intermediate connection part, which is convenient for technicians to operate and control. At the same time, the image detection module installation part is arranged on the other side, which is convenient for installing, disassembling, and debugging the image detection module. This design makes the operation and maintenance of the device more convenient and improves the work efficiency.

[0039] For a further optimized solution, a display screen 8 and control buttons 9 are arranged on the operation panel part 5. A first control main board and a battery are arranged inside the operation panel part 5. Arranging a display screen and control buttons on the operation panel part provides an intuitive and easy-to-use operation interface for technicians. Through the display screen, technicians can view test data, images, and test results in real time, which is convenient for monitoring and analysis. At the same time, the control buttons make the operation more simple and fast, improving the work efficiency.

[0040] The first control main board arranged inside the operation panel part is the core control component of the device, responsible for processing various instructions and data, and realizing precise control of the test process. By optimizing the control algorithm and adding control functions, the accuracy and stability of the test can be further improved to meet more complex test requirements. Arranging a battery inside the operation panel part provides the device with convenient mobility and battery life. Technicians can move flexibly at different test sites without worrying about power problems. At the same time, the long-life design of the battery also ensures the stable operation of the device during long-term testing.

[0041] For a further optimized solution, a charging interface 10 is provided on the side wall of the operation panel unit 5, and the charging interface 10 is electrically connected to the battery. The provision of the charging interface 10 enables the battery to be charged at any time, extending the battery life of the overall device.

[0042] For a further optimized solution, the middle connecting part 6 is of a columnar structure.

[0043] For a further optimized solution, a socket slot 11 is provided on the image detection module installation part 7, and the bottom of the image detection module has a socket base 12, and the socket base 12 is adapted to the socket slot 11. Through the cooperation of the socket base 12 and the socket slot 11, the image detection module can be disassembled and assembled on the image detection module installation part 7 efficiently and quickly, increasing the portability.

[0044] For a further optimized solution, a circuit socket interface 13 is provided at the bottom of the socket slot 11, a circuit socket connector is provided on the socket base 12, and the circuit socket connector is adapted to the circuit socket interface 13. When the socket base 12 is inserted into the socket slot 11, the circuit socket connector can be inserted into the circuit socket interface 13. The cooperation of the circuit socket connector and the circuit socket interface 13 plays a role in electrical connection, facilitating the transmission of electrical signals.

[0045] For a further optimized solution, referring to Figure 3 , the image detection module includes a housing structure, a second control main board 14 and a vision recognition camera 15 are arranged inside the housing structure, the vision recognition camera 15 is electrically connected to the second control main board 14, and the vision recognition camera 15 is used to obtain an image after the locking pin 3 is inserted into the locking ring 4. A high-performance vision recognition camera is provided in the image detection module. This camera features high precision and high resolution, and can clearly capture the image details after the locking pin is inserted into the locking ring. This design ensures the accuracy and reliability of the measurement results, improving the precision and stability of the test.

[0046] The vision recognition camera is electrically connected to the second control main board, realizing the real-time transmission and processing of data. As the core control component of the image detection module, the second control main board has powerful data processing capabilities and can quickly and accurately analyze and recognize the images obtained by the camera. This intelligent data processing capability improves the efficiency and accuracy of the test.

[0047] The housing structure of the image detection module is reasonably designed, which not only protects the internal electronic components from interference and damage from the external environment, but also makes the entire module more compact and lightweight. At the same time, the housing structure is easy to disassemble and assemble, facilitating maintenance and repair work by technicians.

[0048] For a further optimized solution, the housing structure has a base portion 16 and a convex portion 17. The convex portion 17 is arranged on the top of the base portion 16. The convex portion 17 and the base portion 16 are arranged at an angle, and the angle is 70 degrees to 85 degrees. The visual recognition camera 15 is installed on the convex portion 17 so that the visual recognition camera 15 faces the locking pin 3 directly.

[0049] For a further optimized solution, referring to Figure 4 and Figure 5 , the image obtained by the visual recognition camera 15 after the locking pin 3 is inserted into the inside of the locking ring 4 at least includes the position image of the center point of the tip of the locking pin 3 and the image of the central hole of the locking ring 4. By obtaining the position image of the center point of the tip of the locking pin and the image of the central hole of the locking ring through the visual recognition camera, the accurate measurement and positioning of the positions of the locking pin and the locking ring can be realized. This design helps to accurately judge whether the locking pin is completely inserted into the inside of the locking ring and the assembly gap between the locking pin and the locking ring, thereby improving the accuracy and reliability of the test.

[0050] Obtaining the images of the tip of the locking pin and the central hole of the locking ring can comprehensively analyze the assembly gap between the locking pin and the locking ring. By comparing the position relationships in the two images, the key parameters such as the size, direction, and distribution of the assembly gap can be calculated, providing a more detailed analysis of the assembly situation for technicians.

[0051] During the aircraft manufacturing and maintenance processes, the assembly quality of the locking pin and the locking ring is directly related to the safety and reliability of the aircraft. By obtaining the images of the tip of the locking pin and the central hole of the locking ring, the faults and problems in the assembly process, such as the locking pin not being completely inserted and the locking ring being deformed, can be discovered in a timely manner, so that timely and effective measures can be taken for repair and adjustment.

[0052] The device for measuring the assembly gap between the aircraft locking pin and the locking ring in the above embodiments has the following advantages and technical effects:

[0053] 1. By obtaining the image of the locking pin inserted into the inside of the locking ring through the image detection module, the high-precision measurement of the assembly gap between the aircraft locking pin and the locking ring can be realized. The image detection technology has the characteristics of non-contact and high resolution, and can capture the minute changes in the assembly gap, thus ensuring the accuracy and reliability of the measurement results.

[0054] 2. The test host module and the image detection module are detachably connected, making the device have high flexibility and applicability. According to different test requirements and the model specifications of the aircraft locking pin and the locking ring, the test host module and the image detection module can be conveniently replaced or adjusted to adapt to different test scenarios.

[0055] 3. The device is engaged with the lock ring base through the engaging groove, which simplifies the preparation work before the test and makes the test process more convenient and efficient. At the same time, the image detection module can automatically acquire and process image data, reducing the complexity and error of manual operation and improving the test efficiency.

[0056] 4. The image data obtained by the image detection module can be further visualized and analyzed to generate intuitive charts such as assembly gap distribution diagrams and change trend diagrams, providing comprehensive test reports and data analysis support for technicians. This helps technicians better understand the assembly situation of the lock pin and the lock ring, promptly discover and solve problems, and improve the safety and reliability of the aircraft.

[0057] It should be clear that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order between steps after understanding the spirit of the present invention.

[0058] In the present invention, the features described and / or illustrated for one embodiment can be used in the same or similar manner in one or more other embodiments, and / or combined with the features of other embodiments or replace the features of other embodiments.

[0059] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the embodiments of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space, characterized in that: include: A test host module and an image detection module, wherein the test host module and the image detection module are detachably connected, wherein a snap-fit ​​groove (1) is provided in the middle of the test host module, wherein the snap-fit ​​groove (1) is used to snap-fit ​​with a lock ring base (2); and the image detection module is used to obtain an image after a lock pin (3) is inserted into the interior of a lock ring (4).

2. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 1, characterized in that: The test host module comprises an integrally formed operation panel portion (5), an intermediate connection portion (6) and an image detection module installation portion (7); wherein the operation panel portion (5) and the image detection module installation portion (7) are arranged on both sides of the intermediate connection portion (6), the width of the intermediate connection portion (6) is smaller than the width of the operation panel portion (5) and the image detection module installation portion (7), and the adjacent side wall structure of the operation panel portion (5), the intermediate connection portion (6) and the image detection module installation portion (7) forms the engaging groove (1).

3. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 2, characterized in that: The operation panel part (5) is provided with a display screen (8) and control buttons (9), and the interior of the operation panel part (5) is provided with a first control main board and a battery.

4. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 3, characterized in that: A charging interface (10) is provided on the side wall of the operation panel portion (5), and the charging interface (10) is electrically connected to the battery.

5. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 2, characterized in that: The intermediate connecting portion (6) is a columnar structure.

6. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 2, characterized in that: The image detection module installation portion (7) is provided with a plug-in slot (11), and the bottom of the image detection module is provided with a plug-in socket (12), and the plug-in socket (12) is adapted to the plug-in slot (11).

7. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 6, characterized in that: A circuit plug interface (13) is provided at the bottom of the plug slot (11), and a circuit plug connector is provided on the plug socket (12). The circuit plug connector is adapted to the circuit plug interface (13), and when the plug socket (12) is inserted into the plug slot (11), the circuit plug connector can be inserted into the circuit plug interface (13).

8. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 1, characterized in that: The image detection module comprises a shell structure, a second control mainboard (14) and a visual recognition camera (15) are arranged inside the shell structure, the visual recognition camera (15) is electrically connected to the second control mainboard (14), and the visual recognition camera (15) is used to obtain an image after the lock pin (3) is inserted into the lock ring (4).

9. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 8, characterized in that: The housing structure comprises a base portion (16) and a raised portion (17), wherein the raised portion (17) is arranged on the top of the base portion (16), and the raised portion (17) and the base portion (16) are arranged at an angle of 70 to 85 degrees, and the visual recognition camera (15) is mounted on the raised portion (17) so that the visual recognition camera (15) faces the locking pin (3).

10. The device for measuring the assembly clearance of aircraft lock pins and lock rings in a specific space according to claim 8, characterized in that: The image captured by the visual recognition camera (15) after the locking pin (3) is inserted into the interior of the locking ring (4) includes at least an image of the position of the center point of the tip of the locking pin (3) and an image of the center hole of the locking ring (4).